ST72324LS4 STMicroelectronics, ST72324LS4 Datasheet - Page 44

• Manufacturer Part Number: ST72324LS4
• Description: 8-bit MCU
• Manufacturer: STMicroelectronics

Specifications of ST72324LS4

• Hdflash Endurance: 100 cycles, data retention
• Clock Sources: crystal/ceramic resonator oscillators, internal RC oscillator, and bypass for external clock
• Four Power Saving Modes: Halt, Active-Halt, Wait and Slow
• Main Clock Controller With: Real time base, Beep and Clock-out capabilities
• 16-bit Timer A With: 1 input capture, 1 output compare, external clock input, PWM and pulse generator modes
• 16-bit Timer B With: 2 input captures, 2 output compares, PWM and pulse generator modes

ST72324Lxx
I/O PORTS (Cont’d)
9.5.1 I/O Port Implementation
The I/O port register configurations are summa-
rised as follows.
Standard Ports
PA5:4, PC7:0, PD5:0,
PE1:0, PF7:6, 4
Interrupt Ports
PB4, PB2:0, PF1:0 (with pull-up)
Table 13. Port Configuration
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1
floating input
pull-up input
open drain output
push-pull output
floating input
pull-up interrupt input
open drain output
push-pull output
Port A
Port B
Port C
Port D
Port E
Port F
Port
MODE
MODE
PA7:6
PA5:4
PA3
PB3
PB4, PB2:0
PC7:0
PD5:0
PE1:0
PF7:6, 4
PF2
PF1:0
Pin name
DDR
DDR
0
0
1
1
0
0
1
1
OR = 0
floating
floating
floating
floating
floating
floating
floating
floating
floating
floating
OR
OR
0
1
0
1
0
1
0
1
floating
Input
floating interrupt
floating interrupt
floating interrupt
pull-up interrupt
pull-up interrupt
PA3, PB3, PF2 (without pull-up)
True Open Drain Ports
PA7:6
OR = 1
floating input
floating interrupt input
open drain output
push-pull output
floating input
open drain (high sink ports)
pull-up
pull-up
pull-up
pull-up
pull-up
MODE
MODE
open drain
open drain
open drain
open drain
open drain
open drain
open drain
open drain
open drain
open drain
OR = 0
true open-drain
Output
DDR
0
0
1
1
push-pull
push-pull
push-pull
push-pull
push-pull
push-pull
push-pull
push-pull
push-pull
push-pull
OR = 1
DDR
OR
0
1
0
1
0
1